Koestler takes his notion of “bisociation” to be the root of humor, discovery, and art. I take it to be one of the roots of learning, subject to applications of method (on yourself or whomever).
Koestler is a scientist of some reputation by now. He’s made contributions beyond the work of others that he’s generalized from. This is the book—on how discovery of every kind really occurs in the mind—that gave him the reputation. His most lasting contribution.
